Home / 3,128.01-4,317.08-1,801.73

Finding the Fourth Proportional to 3,128.01, 4,317.08 and 1,801.73

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Solution

The fourth proportional to 3,128.01, 4,317.08 and 1,801.73 is: 2,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.01 : 4,317.08 = 1,801.73 : x
  2. Step 2: Convert to fraction form
    3,128.01/4,317.08 = 1,801.73/x
  3. Step 3: Cross multiply
    3,128.01x = 4,317.08 × 1,801.73
  4. Step 4: Simplify right side
    3,128.01x = 7,778,181.95
  5. Step 5: Solve for x
    x = 7,778,181.95/3,128.01
  6. Step 6: Final answer
    x = 2,486.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.